You are wildly mistaken here. Back in 2016, BOOMv1 (Berkley Out-of-Order Machine) had pipelining, register renaming, 3-wide dispatch, branch predictor, caches,

You are wildly mistaken here. Back in 2016, BOOMv1 (Berkley Out-of-Order Machine) had pipelining, register renaming, 3-wide dispatch, branch predictor, caches, etc. A quick google seems to indicate that it was started in 2011 and had taped out 11 times by 2016 (with actual production apparently being done on IBM 45nm). They are on BOOMv3 now.